<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script>
        // 筛选数组方法1
        var arr = [8, 9, 33, 22, 4, 7];
        var a = [];
        var j = 0;
        for (var i = 0; i < arr.length; i++) {
            if (arr[i] >= 5) {
                a[j] = arr[i]
                j++;
            }
        }
        console.log(a);
    </script>
</head>

<body>

</body>

</html>